public class Test {
    public static void main(String[] args) {
        MySingleList mySingleList = new MySingleList();

        mySingleList.addIndex(0,1);
        mySingleList.display();
        mySingleList.addLast(12);
        mySingleList.display();
        //mySingleList.remove(12);
        //mySingleList.display();
        mySingleList.addFirst(12);
        mySingleList.removeAllKey(12);
        mySingleList.display();
        System.out.println();
    }
}
